Recently I was invited to a friend’s house for supper—and had a meal I have never had before. All the friends invited were a little surprised. It’s not that Ben is unsociable, or a bad cook, but it’s just that he never 21 more than he has to. So how come he was inviting us round for a meal? Had he bought something 22 for his friends? He greeted us at the door and showed us into his dining room where a 23_ -table was waiting for us.“Nothing but the best for my friends!”said Ben. We all sat down and looked 24 at each other—what was he up to? Ben returned with four bowls of hot soup.“It’s a mixture of carrots, potatoes and tomatoes,”said Ben. The next 25 was also a little strange in that we didn’t quite know what it was again. It’s just another mixture of vegetable. As we ate we chatted and finally the 26 turned back to what we were eating.“Was there a recipe(食谱) for this,”asked Marina,“or did you 27 it up?”Ben put his fork down.“What I cooked depended on what I could find.”Marina was surprised.“But you can find anything in supermarkets these days.”“But there’s 28 choice in what you can find outside supermarkets,”he replied. Seeing that we had all finished the food, Ben decided to tell the truth. He had read recently that supermarkets usually throw away 5 percent of their food every day. So Ben decided to look inside his local supermarket bins. There he found food that was slightly out of __29 , boxes of throw-away vegetables and fruit. So Ben had successfully provided a decent(体面的) meal for his friends, and made us aware of the fact that there are many poor people who need the food, but the amount of food thrown away is enough to 30 millions of people. 21.A.takes  B. spends   C. uses D. does 22.A.cheap  B. special  C. practical    D. usual 23.A.new    B. separate C. booked   D. laid 24.A.nervously  B. carefully    C. sadly    D. happily 25.A.course B. food C. soup D. salad 26.A.dinner B. idea C. food D. subject 27.A.pick   B. look C. make D. take 28.A.less   B. more C. some D. any 29.A.order  B. place    C. season   D. date 30.A.enrich B. please   C. affect   D. feed